Vertical rack



FIG. 1 is a perspective view of a vertical rack showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings depict portions of the vertical rackthat form no part of the claimed design.

CLAIM The ornamental design for a vertical rack, as shown and described.